Baiji in context: Street-network sprawl trends

Baiji in context

2.733.33.6<19751976–19901991–20052006–2020SNDi of street additions
2.733.33.6<19751976–19901991–20052006–2020SNDi of entire street network
BaijiSala ad-Din (Region)Iraq (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Baiji plotted against Sala ad-Din and Iraq. The SNDi of new construction in Baiji rose steadily, compared to Sala ad-Din which peaked in 1976-1990 and Iraq which peaked in 1976-1990. Most recently, Baiji's incremental SNDi rose from 3.45 to 3.76 between 1991-2005 and 2006-2020. In terms of the aggregate network, Baiji ranked 7th out of 10 cities in Sala ad-Din and 69th out of 86 in Iraq as of 2020.

New Street Additions (2006–2020)

SNDi value
3.76
Rank in Iraq
75th of 86
Rank in Sala ad-Din
7th of 10

Entire Network (Aggregate)

SNDi value
3.07
Rank in Iraq
69th of 86
Rank in Sala ad-Din
7th of 10

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
BaijiCharanikhaliMaple Ridge

In new street additions, Baiji and Charanikhali both built increasingly disconnected streets over time, while Maple Ridge built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Baiji and Charanikhali have been growing further apart in their street-network character since 1975.